Shikaku


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Shikaku (also known as Rectangles) is a logic puzzle with simple rules and challenging solutions.

The rules are simple. You have to divide the grid into rectangular and square pieces such that each piece contains exactly one number, and that number represents the area of the rectangle.

Click and drag to draw a rectangle. To remove lines use the right mouse button or hold the Ctrl or the Shift key.

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Shikaku


5x5 Shikaku | 7x7 Shikaku | 10x10 Shikaku | 15x15 Shikaku | 20x20 Shikaku | 25x25 Shikaku

This Month
1. demian2
61
00:03.05
2. qqwref
154
00:06.18
3. rtj
166
00:07.88
4. eonhochang
29
00:07.91
5. sredmond
38
00:07.92
6. chwen
7
00:09.29
7. BingBongBob
24
00:09.39
8. GeorgPfleger
66
00:09.89
9. qobi
124
00:09.97
10. Harry_Canyon
37
00:10.92
11. BRTRB
6
00:12.52
12. kyrawr83 00:12.94
13. DrVince
44
00:13.19
14. Dorice
128
00:13.23
15. WLF117171711 00:14.20
16. no1mayjah
45
00:16.45
17. HackMan 00:16.54
18. Michelins
20
00:16.67
19. curi
27
00:16.93
20. Varun Gopal
5
00:18.68
This Week
1. demian2
61
00:03.66
2. chwen
7
00:09.29
3. qobi
124
00:09.97
4. Harry_Canyon
37
00:10.92
5. GeorgPfleger
66
00:11.41
6. kyrawr83 00:12.94
7. Dorice
128
00:16.03
8. 1q2w3e4r5t
9
00:41.57
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. GeorgPfleger
66
00:17.67
2.--- empty -----:--
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1. demian2
61
00:04.66
2. vowels
138
00:04.83
3. mtanzer
123
00:05.34
4. sfumato
148
00:06.36
5. qqwref
154
00:06.46
6. bearn
112
00:06.96
7. PuzzleMaestro
46
00:07.61
8. Kaitzschu
117
00:07.63
9. Fastfaxer
116
00:07.69
10. arcer
86
00:07.73
AO5
1. demian2
61
00:04.92
2. vowels
138
00:05.05
3. qqwref
154
00:06.46
4. mtanzer
123
00:06.62
5. sfumato
148
00:06.68
6. bearn
112
00:07.20
7. PuzzleMaestro
46
00:07.90
8. savebog
12
00:08.67
9. Fastfaxer
116
00:08.76
10. eonhochang
29
00:08.81
AO12
1. vowels
138
00:06.04
2. demian2
61
00:06.31
3. sfumato
148
00:07.41
4. qqwref
154
00:07.49
5. mtanzer
123
00:07.81
6. bearn
112
00:08.34
7. eonhochang
29
00:09.68
8. qobi
124
00:10.17
9. Fastfaxer
116
00:10.26
10. arcer
86
00:10.68
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.Charlie Li
60
00:00.707
3.--- empty -----:--

* MO3 - Mean of 3. The average of 3 consecutive times.
AO5 - Average of 5. The average of 5 consecutive times ignoring the highest and the lowest.
AO12 - Average of 12. The average of 12 consecutive times ignoring the highest and the lowest.
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2022-07-06 21:28:30

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